Hey Z1. ETA on those headers?

Joepro

what he said!

I believe we are all getting tied up in peak HP, myself included, when they told me I was just over 320 whp, I was shocked, I was expecting 330ish...My final run was at 82 degrees, and I also remembered that I had the m370 on, as do you I see, which lose peak HP. Seach around the forum, most say we would gain 5-10 hp from ditching the manifold. Peak HP is just a dumb number, how long is your car at the peak HP spot? I rather gain 10 whp under the curve vs 15 or even 20 peak hp...I plan on doing some power pulls on a local dyno in the fall without the m370, I bet my numbers will be darn good with cooler air, the "internet standard" is 1% power per 10 degrees, so to "estimate" your current power level with your 47 degrees number(lets say 40 degrees and 4 % difference), 321 x 1.04 = 333... bingo!

with that said, I crushed your tq # just saying!

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